Here are today’s minor transactions from around baseball, with the newest moves at the top of the post…

The Diamondbacks have optioned Cuban outfielder Yasmany Tomas, the team reports via Twitter. The club signed Tomas for $68.5MM over the offseason. He struggled both defensively and offensively this spring. A stint in Triple-A should give him time to adjust to the outfield and improve his plate approach.

Phillies Rule 5 pick Andy Oliver has elected free agency after he was outrighted, the club announced via Twitter. The hard throwing lefty has struggled with walks throughout his career. That continued this spring with 11 walks and 22 strikeouts in 12 and two-thirds innings. The club also announced on Twitter that they reassigned catcher Rene Garcia, first baseman Russ Canzler, and infielder Cord Phelps to Triple-A.

Athletics pitcher Barry Zito has accepted an outright assignment to Triple-A, tweets Jane Lee of MLB.com. The former star is working his way back from a one-year hiatus. He posted a 4.79 ERA in 20 and two-thirds spring innings. The 37-year-old struck out 14 and walked five. A former ninth overall pick of the A’s, the southpaw struggled after moving across the Bay to San Francisco on a seven-year, $126MM contract. That deal concluded after the 2013 season.

The Red Sox have released Casey Crosby, Bryan LaHair, and Matt Hoffman per the MLB transactions page. Crosby was once a top prospect with the Tigers, but the 26-year-old lefty has yet to develop command. Lahair, 32, had a nice run with the Cubs in 2012 when he hit .259/.334/.450 with 16 home runs in 380 plate appearances. He spent the 2013 season in Japan and split 2014 between Cleveland’s Double and Triple-A clubs.

The Phillies have released shortstop Tyler Greene according to the MLB transactions page. Greene, an 11th round pick, was once rated among the Phillies’ best prospects. He missed the entire 2014 season and has never posted a strikeout rate below 33 percent at any level.

The Giants have released pitcher Edgmer Escalona per the MLB transactions page. Escalona pitched in parts of four seasons for the Rockies, accruing 100 innings. He has a career 4.50 ERA with 6.39 K/9 and 2.88 BB/9.

The Cubs have released lefty pitcher Francisley Bueno according to the transactions page. The 34-year-old has pitched in parts of four season for the Braves and Royals. The soft tossing lefty has a career 2.98 ERA with 4.92 K/9 and 1.79 BB/9 in 60 innings. He’s a pure platoon pitcher.

The Braves released former closer Matt Capps per MLB.com. The righty last appeared in the majors in 2012. He has a career 3.52 ERA with 6.53 K/9 and 1.72 BB/9. He’s thrown just 12 minor league innings over the last two seasons – both with the Indians.

The Phillies have released right-hander P.J. Walters, according to the club’s official transactions page. Walters was signed to a minor league deal in November. The righty posted a 6.28 ERA over 152 career innings with the Cardinals, Blue Jays and Twins from 2009-13 and he spent last season in minors with the Jays and Royals.

The Rays acquired right-hander Bradin Hagens from the Diamondbacks in exchange for cash considerations, Marc Topkin of the Tampa Bay Times reports (via Twitter). Hagens made his Major League debut last season, posting a 3.38 ERA over a 2 2/3-inning cup of coffee with Arizona. A sixth-round pick of the D’Backs in 2009, Hagens has a 4.08 ERA, 1.52 K/BB rate and 6.0 K/9 over 598 1/3 career minor league innings. He’ll report to Double-A with the Rays, Topkin notes.

The Dodgers have acquired lefty Rudy Owens from the Athletics, Susan Slusser of the San Francisco Chronicle (Twitter link) hears from A’s assistant GM David Forst. Owens unofficially announced the trade himself via his Twitter feed. Owens has a 3.61 ERA, 6.9 K/9 and 3.47 K/BB rate over 781 1/3 minor league innings in the Pirates’ and Astros’ farm systems, and he received his first taste of MLB action last season, making one start for Houston.

The Mariners have released outfielder Phillips Castillo, Baseball America’s Matt Eddy reports (Twitter link). Castillo received a $2.2MM bonus from the M’s when he signed with them as a 16-year-old in 2010, a price tag befitting his status as one of the international market’s top hitters of that year. Over four seasons and 870 minor league plate appearances, however, Castillo only managed a .226/.303/.383 slash line and 20 homers, never advanced beyond the low A-ball level.

Baseball America’s Matt Eddy reports several new minor league transcations (allcomingviaTwitter). Let’s take a look…

The Giants have signed hard-throwing right-hander Edgmer Escalona to a minor league pact, Eddy reports. Though Escalona didn’t appear in the Majors least year, the Orioles thought enough of his arm to give him a Major League deal in the offseason. Escalona, 28, has a career 4.50 ERA in exactly 100 innings in the Majors, but he posted a 5.80 ERA from 2012-13 with Colorado. Though he averages just under 94 mph on his heater, he’s only whiffed 6.4 hitters per nine innings in the Majors.

The Athletics released corner infielder Miles Head after a pair of injury-plagued seasons in which he batted just .233/.292/.352 at Double-A. Head was one of the prospects sent to the A’s from the Red Sox in the Josh Reddick–Andrew Bailey swap prior to the 2012 season and has previously ranked among the organization’s 10 best prospects.

Right-hander Robby Rowland has signed a minor league deal with the Cardinals, per Eddy. Formerly a third-round pick of the D-Backs (2010), Rowland has yet to pitch at a level higher than Class-A Advanced. He has a lifetime 5.28 ERA in the minors with 5.6 K/9 and 2.9 BB/9. Rowland turned 23 in December.

The Astros have signed righty Robert Stock, says Eddy. Stock is a converted catcher who was drafted in the second round by the Cardinals in 2009 when Houston GM Jeff Luhnow was still their scouting director. Stock is clearly still a work in progress on the mound, as he’s walked 6.9 hitters per nine innings at two different Class-A levels.

The Yankees have signed right-hander Edgmer Escalona to a minor league deal, according to the club’s transactions page. The hard-throwing 27-year-old rejected an outright assignment from the division-rival Orioles and elected free agency a couple weeks back. Curiously, the Orioles transitioned Escalona to their Triple-A rotation, where he made the first three starts of his professional career. He didn’t fare particularly well, posting a 6.10 ERA in 20 2/3 innings. He has some MLB experience with the Rockies and averaged 94.2 mph on his heater from 2012-13.

Escalona will take the roster spot of righty Robert Coello at Triple-A Scranton/Wilkes-Barre, after Coello opted out of his minor league deal, the team has officially announced (hat tip: Donnie Collins of the Scranton Tribune-Times on Twitter). Coello posted a pristine 1.69 ERA with 44 strikeouts in 32 innings, but he also walked a troubling 21 batters in that time.

Chris Cotillo of MLB Daily Dish reports (via Twitter) that right-hander Sean O’Sullivan has accepted his outright assignment with the Phillies. O’Sullivan was outrighted yesterday after being designated for assignment last week and had the option to elect free agency.

The Orioles have announced that right-hander Edgmer Escalona has rejected his outright assignment and elected free agency instead.

Escalona, 27, signed a Major League deal with the O’s this offseason despite lacking a significant Major League track record. He opened the season on the 60-day disabled list as he recovered from an impingement in his right shoulder but was activated and began pitching for Triple-A Norfolk in late May.

Curiously, after making three relief appearances, the Orioles transitioned Escalona to the Tides’ rotation, where he made the first three starts of his professional career. All 262 of his minor league appearances and all 70 of his Major League appearances had come out of the bullpen prior to that point.

Escalona didn’t fare particularly well in the Norfolk rotation, and he leaves the Orioles’ organization with a 6.10 ERA in 20 2/3 innings. He struck out 14 batters in that time and showed solid command, yielding only five walks.

Prior to his time with the Orioles organization, Escalona had spent his entire career with the Rockies. In exactly 100 innings at the Major League level, he has a 4.50 ERA with 6.4 K/9, 2.9 BB/9 and a 36.7 percent ground-ball rate. Escalona’s strong 94.2 mph average fastball velocity from 2012-13 likely enticed the Orioles. That marked a significant uptick in his velocity from 2010-11, but unfortunately for the Rockies, the increased velocity also came with a 5.80 ERA in 68 1/3 innings of work, which likely led to his departure from the Rockies organization.

Here are today’s minor transactions from around baseball, with the newest moves at the top of the post…

The Padres are set to promote Odrisamer Despaigne, MLBTR’s Tim Dierkes tweets. They’ll need to clear a spot on their 40-man roster to make space for him. Despaigne, a Cuban pitcher who the Padres signed to a minor league deal in May, had two good starts for Double-A San Antonio before posting a 7.61 ERA in five starts for Triple-A El Paso. He did, however, post 11.0 K/9 and 4.9 BB/9 in 23 2/3 innings there. Despaigne will start in place of Andrew Cashner on Monday, CBS Sports’ Jon Heyman suggests (via Twitter). (The Padres are merely being “conservative” in scratching Cashner, Heyman says, although he does not give an exact reason why Cashner won’t be starting.)

The Orioles have outrighted right-hander Edgmer Escalona to Triple-A, tweets Hall. In a separate tweet, Hall reports Escalona is still processing the move and will consult his agent as to whether to accept the outright or declare free agency. The 27-year-old has appeared in six games (three starts) for Norfolk this year posting a 6.10 ERA, 6.1 K/9, and 2.2 BB/9 in 20 2/3 innings.

The Cubs added left-hander Tsuyoshi Wada to their 40-man roster and optioned him to Triple-A Iowa, the club announced. Wada has been pitching for Iowa all season but, as Bruce Miles of the Daily Herald tweets, the Japanese southpaw had an opt-out clause in his contract, so putting Wada on the 40-man allows the Cubs to keep him. Signed to a minor league deal in the offseason, Wada has an impressive 2.81 ERA, 8.7 K/9 and 3.61 K/BB rate in 14 Triple-A starts in 2014.

The Phillies released outfielder Tyson Gillies, the team announced. A career .284/.364/.411 hitter over 2060 minor league PA, Gillies struggled at the Triple-A level over the last two seasons. Gillies joined the Phillies from the Mariners organization in December 2009 as part of the trade package (along with J.C. Ramirez and Phillippe Aumont) that Philadelphia acquired from Seattle in exchange for Cliff Lee.

The Tigers shifted right-hander Luke Putkonen from the 15-day DL to the 60-day DL in order to create a 40-man roster spot for the newly-recalled Pat McCoy, the team announced. In another corresponding move, Ian Krol was put on the 15-day DL to make room for McCoy on the 25-man roster. Putkonen only pitched 2 2/3 innings for Detroit and five total minor league innings this season due to elbow problems, and he is expected to be out for 6-8 weeks after recently undergoing surgery.

The Orioles have announced via a press release they have designated left-hander Mike Belfiore for assignment. The move, along with placing right-hander Edgmer Escalona on the 60-day disabled list, clears roster space for the addition of outfielder Delmon Young and right-hander Evan Meek to the 40-man roster.

Belfiore made his MLB debut last September for the Orioles throwing 1 1/3 innings against the Red Sox allowing three hits, including a pair of home runs. At Triple-A, the 25-year-old made 37 relief outings posting a 3.18 ERA, 9.7 K/9, and 3.4 BB/9. The Diamondbacks made Belfiore the 45th overall pick in the 2009 amateur draft, but shipped him to Baltimore in 2012 as the player to be named later when they acquired Josh Bell.

The Orioles announced, on Twitter, that they have signed right-hander Edgmer Escalona to a one-year, Major League contract. The 27-year-old is represented by agents Barry Praver and Scott Shapiro.

The 27-year-old Escalona pitched to a 5.67 ERA with 6.7 K/9, 2.7 BB/9 and a 39.9 percent ground-ball rate in 46 innings for the Rockies in 2013. The Venezuelan hurler hasn't had much big league success but has averaged 94.2 mph on his heater over the past two seasons.

It's worth pointing out that Escalona had pitched to a 3.38 ERA with a strong 27-to-7 K/BB ratio through his first 32 innings. On June 9, he allowed three runs in one-third of an inning and hit the disabled list with elbow inflammation. That injury likely contributed to the sky-high 10.93 ERA he posted over his next 14 frames before being designated for assignment.

Orioles executive vice president Dan Duquette explained to Roch Kubatko of MASNsports.com that Escalona has been starting in the Venezuelan Winter League and has added a third pitch — a split-fingered changeup — that scouts have raved about. Kubatko quotes Duquette: "We feel like he's developing pitches that he needs to be successful in the big leagues. He's got a weapon for left-handed hitters now," (Twitterlinks).

Escalona has a 2.10 ERA with a 25-to-11 K/BB ratio in 34 1/3 innings in Venezuela this winter. He is the second bullpen piece that Duquette has signed to a Major League deal this week, as the team also picked up lefty Kelvin De La Cruz on Monday despite the fact that he has no Major League experience. With the Escalona signing, the O's now have 33 players on their 40-man roster.

The Yankees have released first baseman Dan Johnson, according to the International League transactions page. Sweeny Murti of WFAN was first to report the move (on Twitter). After signing a minor league deal over the off-season, Johnson has posted a strong .253/.379/.447 line in 559 plate appearances at Triple-A this year. The 34-year-old last saw big league action in a short stint with the White Sox last year, and has a career .237/.338/.412 triple-slash over 1,551 MLB plate appearances.

Escalona threw 46 innings in relief for the Rockies this season, posting a 5.67 ERA with 6.7 K/9 and 2.7 BB/9. He has appeared in parts of four seasons with the Rockies. Escalona had a 1.54 ERA in mid-May, but his numbers suffered immensely thereafter, culminating when he gave up five runs in a blowout loss to the Braves on August 1.